Answer:
Plants produce oxygen during photosynthesis, and they also need oxygen gas from the air for cellular respiration
Explanation:
Answer: operon
Explanation:
An operon is a cluster of genes that are transcribed together to give a single messenger RNA (mRNA) molecule, which therefore encodes multiple proteins (Fig. 16.11). Such polycistronic mRNA is typically found in prokaryotes.
Answer:
B is the correct answer
Explanation:
All the other answers are opinion based
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Answer:
23 pairs
Explanation:
Humans normally have 23 pairs of chromosomes, which equals 46 (23 pairs, 23*2=46) total chromosomes. 22 of the pairs are autosomes. They store the genes. The other pair is the sex chromosomes. They decide whether the person is male or female.
1: over population
2:disease
3: Darwinism.
